Curtain-fixture.



- PATENTEDl OCT. 8, 1907.

H. M. STURGIS. CURTAIN FIXTURE.

APPLICATION FILED SEPT. 22. 1906.

Muur A bem Wwmfyfzi;

position from that shown in Fig. 3.

HERBERT M. STURGIS, OF KANSAS CITY, MISSOURI.

CURTAIN-FIXTURE.

No. 867,850. Specification of Letters Patent.

Application filed September 22,1906. Serial No. 335,813.

Patented Oct. 8, 1907.

To all whom it may concern:

p stem 9 and bearing at its inner end against the in- Be it known thatI, HERBERT M. STURGIs, a citizen wardly projecting fiange or flanged end10 of said stem. of the United States, residing at Kansas City, in the19 indicates a pair of angle plates or dogs within the county of Jacksonand State of Missouri,lhave invented shoe; the substantially horizontalarms of said dogs certain new and useful Improvements inV Curtainbeingprovided with apertures 20 for engagement with Fixtures, of which thefollowing is a specification. rod 3. The substantially vertical arms ofthe dogs fit This invention relates to curtain fixtures and more ibetween head 16 and collar 17 and are bifurcated or particularly to thatclass for use on car curtains and has for its object to produce meanswhereby curtains will be secured reliably at any desired point of adljustment.

To this end the invention consists in certain novel and peculiarfeatures of construction and organization. By reference to Fig, 1 itwill be seen that the tendas hereinafter described and claimed; and inorder that i ency of spring 18 is to project the dogs outward so that itmay be fully understood reference is to be had to their apertures 20shall be out of alinement with holes notched at 21 to engage rod 12between said head and collar, it being noticed in this connection thatthe inner ends of the sloping or converging surfaces of the end walls 6or the shoulders 8, are so disposed that the dogs lit snugly betweenthem.

the accompanying drawing, in WhCh* 7 of the shoe, and while in thisposition the dogs are Figure l, is a vertical section taken 0n the lineI-I held reliably in place by pressure ofthe spring, but. can 0f Fig. 2,of Curtain-securing devices embodying my be easily removed from positionand replaced in such invention. Fig. 2, is an end view of said devices.position. Fig. 3, is a central vertical section of the devices and Whenthe parts are to be assembled in operative reof one side of the windowframe, on the line III*III lation, as shown in Figs. 3 and 4, the usualor any preof Fig. 2. Fig. 4, is a view substantially similar to ferredmeans (not shown), may be manipulated to mOVe Fig. 1 but with the outerportion of the upper dog in rod l2 inward until the dogs assume theposition shown central section and the curtain guide-rod extending inFig. 4 with their apertures 20 in ve'rtical alinement through said shoeand dogs and the latter in a different with holes 7 and ready to receivethe rod 3. The latter Fig. 5, is a view is then slipped through the shoeand the dogs and sesimilar to Fig. 4 but with the shoe provided withcured in the groove 2 of the window casing, and as the internalshoulders. pull on rod 12 is removed, the spring 18 moves the latter Inthe said drawing 1 indicates one side of the window outward and therebycauses the dogs to assume the poframe, 2 the usual vertical groovetherein and 3 a stiff sitions shown in Fig. 3, assuming such positionsbecause guide-rod supported within said groove in any suitable the inneredges of the holes 20 find a resistance in and or preferred manner.slide apart on the stiff rod and pivotally turn to said positions underthe outward pressure of the spring 18, against their inner or contiguousends. It will thus be seen that the dogs are in effect floating dogsbecause, when the rod 12 is moved inward the fulcrum points of the dogsare transferred to their outer angles and they rock or turn against theinner surfaces of walls 6 or the shoulders 8, as the case may be, itbeing apparent that this is so because the inward pull on their inner orcontiguous ends tends to cause the dogs to move vertically apart andconsequently press against said walls or shoulders. The said innersurfaces of said walls or shoulders therefore perform the dual functionsof a fulcrum for the dogs to cause them to release the rod 3 when rod 12is moved inward and of preventing the dogs from moving apart bodily whenlocked or unlocked on rod 3, as shown respectively in Figs. 3 and 4. Theupper wall or shoulder also causes the upper dog to bite more heavilyupon the rod 3 under an attempt to lower the curtain without unlockingthe dogs and the same result is ac- A shoe for engagement with each rod3, is constructed as follows: 4 indicates the body portion arrangedvertically and provided with vertical side walls 5 projecting outwardlyand into the groove 2 and with upper and lower end walls 6 which connectthe upper ends of walls 5 and are provided with vertically alined holes7 through which rod 3 extends. The inner sides of said end wallsconverge inwardly as in Figs. 1 to 4 inclusive, or they may be providedwith shoulders 8 at their junction with the body portion.

9 indicates a cylindrical tubular stem projecting horizontally inwardfrom and centrally of the body portion and has its inner end flangedinward as at l0.

11 indicates a horizontal tubular rod to receive the lower end of thecurtain (not shown), and 12 a rod extending through rod 1l and stem 9and into the shoe, and terminating at its outer end in a reduced portion13, to provide a shoulder 14, the outer end of portion 13 being up-seto1' riveted as at 15 to secure rigidly against shoulder 14, a head orenlargement 16 for rod 12.

17 indicates a collar fitting slidingly on rod 12 between head 16 andthe body portion of the shoe and holding said collar pressed yieldinglyoutward is a helical spring 18, the same encircling rod 12 within dogunder a similar attempt to raise the curtain. To adjust the curtain upor down the operator must move rodk 12 inward, which action causes thedogs to rock to substantially the position shown in Fig. 4 when thecomplished by the lower wall or shoulder and the lower curtain may bepulled downward or the spring-roller (not shown) permitted to raise it,the dogs instantly reclamping upon the rods when the power is removedwhich overcomes the pressure of spring 18, which in view of its tendencyto press the dogs outward, as shown in Fig. l, tends to impart to them aslight movement bodily as well as a pivotal movement and thus cause themto bite or impinge with greater force upon the rod than could beproduced by a purely pivotal movement only.

From the above description it will be apparent that I have produced acurtain fixture embodying the features oi advantage enumerated asdesirable and which is susceptible oi modification structurally withoutdeparting from the spirit and scope of the appended claims.

Having thus described the invention what I claim as new and desire tosecure by Letters Patent, is:-

l. In a curtain fixture, a hollow shoe open at its outer side andprovided with a tubular stem, a rod extending longitudinally throughsaid stem and projecting into the shoe and provided within the latterwith a head, a pair of angular dogs within and tulcrumed in said shoeabove and below said rod respectively and having their contiguous endsdisposed inwardly of said head, and an expansive spring mounted on saidrod within said stem and bearing at its inner end against the latter andexerting a yielding pressure at its outer end whereby the saidcontiguous ends of the dogs are held against said head.

2. In a curtain fixture, a hollow shoe open at its outer side andprovided with a tubular stein, a rod extending slidingly through saidstem and projecting into the shoe and provided with a head within thelatter, a sliding collar mounted on said rod, and a pair of angular dogshaving their contiguous ends held between said head and collar with ayielding pressure.

3. In a curtain fixture, a hollow shoe open at its outer side andprovided with a tubular stem, a rod extending slidingly through saidstem and projecting into the .shoe and provided with a head within thelatter, a sliding col lar mounted on said rod, a pair of angular dogshaving their contiguous ends interposed between the head and collar ofsaid rod, and a spring mounted on the rod and hearing at its inner endagainst the stem of the shoe and at its outer end against said collar toclamp the latter yicldingly against the dogs.

4. The combination with a window casing having a groove in its innerside, a vertical rod in said groove and a tubular rod for attachment toa curtain, of a. hollow shoel Iitting in said groove and having itsouter side open and provided with vertically alined holes in its upperand lower ends,internal shoulders and a tubular stein projecting intothe rod movable with the curtain and having`- its inner end flangedinwardly, a rod extending through the tubular curtain-rod and the stemand projecting into the shoe and provided within the latter with astationary head and a sliding collar, a pair of angular dogs i'ulcruinedon said internal shoulders :1nd having their contiguous ends engagingthe rod between its head and collar and provided with apertures neaitheir opposite ends engaging the vertical rod, and a spring surroundingthe rod and hearnf.; at its inner end against the lianged end of thestein and at its outer end against the said collar to cause the salue toclamp said contiguous ends of the dogs against; said head.

In testimony whereof I ail'ix iny signature, in the presence oi twowitliesses.

HERBERT M. STURGIS.

Witnesses FRANK R. Gnonn, G. Y. Ti'ionrn.

